Line powered motion detector

Motion detection

A passive infrared (PIR) sensor is the primary means for detecting motion. A secondary motion sensor be used for false-trigger avoidance and to implement advanced features. A mmWave sensor operates as a RF-based radar to give range, velocity, and angle information of objects in a scene across multiple environmental conditions including low light, bright light outdoor environments and smoke.

Products

Industrial mmWave radar sensors

IWR6843—Single-chip 60-GHz to 64-GHz intelligent mmWave sensor integrating processing capability

Shunt voltage references

ATL431LI—Low-IQ programmable shunt regulator offered in an ultra-small DQN package

TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator

Series voltage references

REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference

Noninverting buffers & drivers

SN74LVC1G125—Single 1.65-V to 5.5-V buffer with 3-state outputs

SN74LVC1G126—Single 1.65-V to 5.5-V buffer with 3-state outputs

CD74HC125—4-ch, 2-V to 6-V buffers with 3-state outputs

Precision ADCs

ADS7886—2.35V-5.25V, 12 bit, 1MSPS, Serial ADC

ADS1114—16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C

Digital processing

The motion sensor can use a dedicated microcontroller or a mmWave sensor which combines the microcontroller and radar analog front-end on a single device.

Products

Arm-based processors

TMS320DM8127—DaVinci Digital Media Processor

Arm Cortex-M0+ MCUs

MSPM0G1106—80MHz Arm M0+ MCU, 64KB Flash, 32KB SRAM, 2×12bit 4Msps ADC, op-amp

MSPM0G3507—80MHz Arm M0+ MCU, 128KB Flash, 32KB SRAM, 2×12bit 4Msps ADC, DAC, 3×COMP, 3×op-amp, CAN-FD, MATHACL

MSP430 microcontrollers

MSP430FR2433—16 MHz MCU with 16KB FRAM, 4KB SRAM, 10-bit ADC, UART/SPI/I2C, timer

MSP430F2274—16 MHz MCU with 32KB Flash, 1KB SRAM, 10-bit ADC, 2 OpAmp, I2C/SPI/UART

MSP430F5437A—25-MHz MCU with 256-KB Flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer and HW multiplier

MSP430F5172—25 MHz MCU with 32KB Flash, 2KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

Arm Cortex-M4 MCUs

TM4C1294NCPDT—32-bit Arm Cortex-M4F based MCU with 120-MHZ, 1-MB flash, 256-KB RAM, USB, ENET MAC+PHY

Shunt voltage references

ATL431LI—Low-IQ programmable shunt regulator offered in an ultra-small DQN package

TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Series voltage references

REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference

Auto-direction voltage translators

LSF0102—Dual bidirectional multi-voltage level translator

Noninverting buffers & drivers

SN74LVC1G125—Single 1.65-V to 5.5-V buffer with 3-state outputs

SN74LVC1G126—Single 1.65-V to 5.5-V buffer with 3-state outputs

CD74HC125—4-ch, 2-V to 6-V buffers with 3-state outputs

AND gates

SN74AUP1G08—1-ch, 2-input 0.8-V to 3.6-V low power (< 1uA) AND gate

SN74LVC1G08—1-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate

I2C general-purpose I/Os (GPIOs)

TCAL6416—16-bit translating I²C-bus/SMBus I/O expander with interrupt, reset, and agile I/O configuration

Low-power 2.4-GHz products

CC2640—SimpleLink™ 32-bit Arm Cortex-M3 Bluetooth® Low Energy wireless MCU with 128kB Flash

CC2651R3—SimpleLink™ 32-bit Arm® Cortex®-M4 single-protocol 2.4-GHz wireless MCU with 352-kB flash

CC2630—SimpleLink™ 32-bit Arm Cortex-M3 Zigbee and 6LoWPAN wireless MCU with 128kB Flash

Non-isolated DC/DC power supply

Line powered motion detectors are powered from a 12V DC source. A buck converter or linear regulator (LDO) can be used for single voltage rail designs. A power management IC or multiple LDOs can be used to generate multiple voltage rails.

Products

Linear & low-dropout (LDO) regulators

TLV709—150-mA 30-V low-dropout (LDO) linear regulator with 3.2-μA supply current

TPS7A24—200-mA, 18-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with enable

TPS7A53-Q1—Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator

TLV757P—1-A, low-IQ high-accuracy low-dropout (LDO) voltage regulator with enable

Buck converters (integrated switch)

TPS62868—5.5-V 4-A synchronous step-down converter with I²C interface in 1.5-mm x 2.5-mm QFN package

TPS62825A—2.4-V to 5.5-V input, 2-A step-down converter with forced PWM in 1.5-mm × 1.5-mm VSON-HR package

TPS62813-Q1—Automotive 2.75-V to 6-V, 3-A step-down converter with fixed Fsw and SYNC in 2x3mm wettable-flanks

Shunt voltage references

ATL431LI—Low-IQ programmable shunt regulator offered in an ultra-small DQN package

TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator

Boost converters (integrated switch)

TPS61046—28-V Output Voltage Boost Converter in WCSP Package

TPS61220—0.7-VIN, adjustable output voltage boost converter with 5.5-μA quiescent current

TPS61291—Low Iq Boost Converter with 15nA Bypass Operation

TPS610981—Low input voltage, 3.3-V output voltage, synchronous boost converter with integrated LDO

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Series voltage references

REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference

Analog switches & muxes

TMUX1308—5-V, 8:1, 1-channel general-purpose multiplexer with 1.8-V logic control

TS5A1066—5-V, 1:1 (SPST), 1-channel general-purpose analog switch

TS5A3160—1-Ω on-state resistance, 5-V, 2:1 (SPDT), analog switch (6-pin SOT-23, SC70 packages)

Wired interface

The motion detector may include a number of wired interfaces. An RS-485 wired connection can be used to communicate alarm status to a network.

Products

RS-485 & RS-422 transceivers

THVD1410—3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection

SN65HVD3082E—Half-duplex RS-485 transceiver

SN65HVD24—Extended Common-mode RS-485 Transceiver

SN65HVD3088E—Low-power half-duplex RS-485 transceiver

SN65HVD96—SymPol Transceiver

SN65HVD82—5V-Supply RS-485 with IEC ESD Protection

Wired interface signal input/output protection

An ESD protection may be required for protection on wired interfaces.

Products

ESD protection diodes

ESDS314—Quad 4.5-pF, 3.6-V, ±30-kV ESD protection diode with 25-A 8/20-uS surge rating for USB and Ethernet

TPD1E10B06—12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

TPD1E1B04—1-pF, ±3.6-V, ±30-kV ESD protection diode with 6.3-A 8/20-uS surge & low clamping in 0402 packa

TVS diodes

TVS1401—14-V bidirectional flat-clamp surge protection device

Relay system

A solid-state relay (SSR) output can be used to signal alarm and trouble conditions.

Products

N-channel MOSFETs

CSD19538Q2—100-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 59 mOhm

CSD18541F5—60-V, N channel NexFET™ power MOSFET, single LGA 1.5 mm x 0.8mm, 65 mOhm, gate ESD protection

CSD17483F4—30-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6 mm, 260 mOhm, gate ESD protection

P-channel MOSFETs

CSD75208W1015—-20-V, P channel NexFET™ power MOSFET, dual Common Source WLP 1 mm x 1.5 mm, 108 mOhm, gate ESD prot

Output user interface

The motion sensor can generate an audible alarm. An LED driver can generate simple LED notifications or more complex patterns.

Products

Speaker amps

TPA6211A1—3.1-W, mono, analog input Class-AB audio amplifier

RGB LED drivers

TLC59116—16-bit Fast-Mode Plus (FM+) I2C-Bus constant-current LED sink driver

General-purpose op amps

OPA2310—Dual-channel, 5.5-V, 3-MHz high-output-current (150-mA) fast-shutdown (1-μs) operational amplifier

TLV9001—One-channel, 1-MHz rail-to-rail input and output 1.8-V to 5.5-V operational amplifier

TLV9052—Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

TLV9051—Single, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

TLV9002—Dual, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications

TLV9061—Single, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications

Self-diagnostics/monitoring

A voltage supervisor can be used to keep the microcontroller in reset until valid voltage levels are reached.

Products

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Tamper detection

An anti-tampering mechanism is needed to detect unpermitted access to the motion detector or to detect sensor masking. A mechanical switch can be used to detect when the enclosure has been opened. Active infrared can be used to detect masking.

Products

Light sensors

OPT4001—High-speed high-precision digital ambient light sensor (ALS)

OPT3001—Digital ambient light sensor (ALS) with high-precision human-eye response

OPT3002—Light-to-digital sensor

General-purpose op amps

OPA2310—Dual-channel, 5.5-V, 3-MHz high-output-current (150-mA) fast-shutdown (1-μs) operational amplifier

TLV9001—One-channel, 1-MHz rail-to-rail input and output 1.8-V to 5.5-V operational amplifier

TLV9052—Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

TLV9051—Single, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications

Precision op amps (Vos<1mV)

OPA2330—Dual, 1.8-V, 35-µA, micropower, precision, zero drift CMOS op amp

OPA320—Precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

LMP7715—Single precision, 17-MHz, low-noise, low bias current, CMOS input amplifier

OPA376—Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

TLV369—Single, 800-nA, 1.8-V, RRIO op amp with zero-crossover distortion for cost-sensitive application

Signal input/output protection

An ESD protection may be required for protection on a local button.

Products

ESD protection diodes

ESDS314—Quad 4.5-pF, 3.6-V, ±30-kV ESD protection diode with 25-A 8/20-uS surge rating for USB and Ethernet

TPD1E10B06—12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

TPD1E1B04—1-pF, ±3.6-V, ±30-kV ESD protection diode with 6.3-A 8/20-uS surge & low clamping in 0402 packa

TVS diodes

TVS1401—14-V bidirectional flat-clamp surge protection device